[I Am The Genius]

The oldest dog I owned was a German Shephard/Golden Retriever mix. She passed away when I was 10 in October of 97. She was a very smart dog. It is unsure how long she lived, we guessed 12 - 15 years. My parents got her well before I was born.

From having experience working at an Animal Clinic in college, 18 years is a very, very long life for a dog. Sorry to hear about the loss.